Inappropriately dangling power effects.

[srmalloy]

In two early missions -- Matthew Habashy's mission "Incognito", where you're disguised as you enter a Hellion hideout, and Sandra Castel's "Confront the Skull Leader" mission -- will bring your pets into the mission. In the former mission, it's perhaps not too discordant for your disguised Demon Summoning MM to have a demon following them, but other pets, both in that mission and Sandra Castel's, would probably raise suspicions. This happens with both the MM pets and the various buff pets from the P2W vendor.

 

Additionally, the disguise you assume in Matthew Habashy's mission doesn't seem to understand tails, so your Hellion disguise may be marred by the presence of a tail sticking out behind you.